US2708559A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tripod screen stand
Assignee: DA LITE SCREEN CO Inc
•
Filing: 1952-10-31
•
Granted: 1955-05-17
•
Expires: 1972-10-31
Abstract
No abstract record available.
Inventors
- 👤 Mais Leo J Du
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:32
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/54; G03B21/56; G03B21/58
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1220758A
Cited
US1436017A
Cited
US1599200A
Cited
US1854096A
Cited
US1859289A
Cited
US2549584A
Cited
US2591244A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-05-16 | 1958-11-15 | 1959-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-05-16 | 1962-11-15 | 1963-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-05-16 | 1966-11-15 | 1967-05-17 | $7700.00 | Window Closed / Lapsed |